NOVEL FIBER OPTIC SENSOR BASED ON IN-LINE CORE-CLADDING INTERMODAL INTERFEROMETER AND PHOTONIC CRYSTAL FIBER

Wojtek Bock, Tinko Eftimov, Predrag Mikulic, Jiahua Chen

Abstract

We propose a simple all-fiber structure based on intermodal interference between a core and a cladding mode of an endlessly single-mode photonic crystal fiber section sandwiched between a lead-in and lead-out SMF-28 fiber. The sensitivities to strain, pressure and temperature are measured. The interferometer is compared to an interferometer based on LP₀₁-LP₀₂ SMF-28 fiber and to a PCF-based tapered LPG.

Keywords

intermodal interferometer, photonic crystal fiber, fiber-optic sensors

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IMEKO-WC-2009-TC2-453.pdf

DOI

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IMEKO TC

TC2 - Photonics

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